Corrections and Additions to the work entitled "Geometrid Moths of the World", edited by M. J. Scoble (Lepidoptera) - III. Centr. ent. Stud., Misc. Pap. 90: 1-5. This paper deals with the corrections of the work entitled "Geometrid Moths of the World". Totally 102 errors have been corrected. Two junior synonyms have been determined: Eupithecia ronkayi Vojnits,1994 (syn.nov.), Phalaena bicolorata Fabricius,1798 (syn.nov.). An older synonymous name has been proposed as valid name for one species: Macaria praeatomata (Haworth,1809) (stat.rev.). Eleven replacement names have been proposed: Danielaparra (nom.nov.), Eupithecia descimoni ssp. ecuador (nom.nov), Eupithecia hastaria ssp. tango (nom.nov), Eupithecia uighurica (nom.nov), Eupithecia nusret (nom.nov), Eupithecia chilensis (nom.nov), Idaea vivacolombia (nom.nov), Perizoma hydrata ssp. masal (nom.nov), Perizoma cesa (nom.nov), Nyssiodes koreanus (nom.nov), Scopula cesa (nom.nov).